Wireless electricity transmission: The impossible is now a reality
The science breakthrough could charge smartphones, medical implants, and also electric vehicles on the go, something which seemed impossible until now.
If electric cars could recharge on the go, it will eliminate concerns and perhaps make electricity the standard fuel for vehicles.
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Wireless electricity transmission - the future lies here!
Stanford Physicists publish findings in journal 'Nature'
The scientists overcame a major hurdle to by wirelessly delivering electricity to nearby moving objects.
Stanford professor and lead author of study, Shanhui Fan, said apart from wirelessly charging vehicles and devices, the technology may "untether robotics" in manufacturing.
He added the amount of electricity transmitted needs to be significantly increased but there may be no need to push the distance further.
Transmission achieved much smaller than what electric vehicles need
Scientists wirelessly transmitted electricity to a moving LED light bulb.
Their demonstration involved only a 1mW (1milliwatt) charge, which is billions of times smaller than what electric cars require, which often need tens of kilowatts.
They are now working to "greatly increase" the amount of electricity their technology can transfer.
They are also tweaking their system to extend the transmit distance.
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Stanford professor Shanhui Fan's statement
The Professor of Electrical Engineering said: "We can rethink how to deliver electricity not only to our cars, but to smaller devices on or in our bodies. For anything that could benefit from dynamic, wireless charging, this is potentially very important."
Electric Vehicles: Eliminating issues of charging-station availability, battery range
The technology would address a major drawback of electric cars, limited driving range.
A coil in the bottom of the car could receive charge from a series of coils connected to an electric current embedded in the road.
Some transportation experts imagine an automated highway system as a future possibility where driverless electric vehicles are wirelessly-powered by solar or other renewable energies.
The goal of wireless electricity transmission system
The wireless technology aims to reduce road accidents, improve traffic flow, and decrease the greenhouse gas emissions.
Also, it could assist the GPS navigation of driverless vehicles the accuracy of which is up to 35ft.
For safety purposes, autonomous vehicles need to be in the centre of the road where coils would be embedded that will also provide precise positioning for GPS satellites.
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